Hi All,
I need to re-install a new mail server.
So I have the actual server running on and ordered a new one where I'm
installing and configuring newer softwares.
It's done and I need to move all domains and it's accounts to the newer
server.
Once there are so many gigabytes to move, I'll need to move
domain-by-domain, the will take weeks to move it all.
My problem is the DNS propagation.
Our server are configure with a 2 hours TTL
So after I move a domain and it's accounts, the next 2 hours both servers
(old one and new one) will receive messages (due to DNS time propagation).
What I want to is configure the old server to relay mails sent to that moved
domain, to the new server.
How can I do that?
My server is configured to use Postfix + SMTP_AUTH + MySQL
I have tried:
1) to create redirect rows on the virtual_maps from 'u...@domain.tld' to
'u...@new.server'
didn't work: messages didn't arrive into the users account
2) set 'relayhost=new.server'
didn't work: after deleting domain.tld from the
'virtual_mailbox_domains' it raises 'Relay access denied' and doesn't relay
the message to the newer server.
Any tip/suggestion for that?
Thanks,
Ronan
